Portal 2 sold better on PC than Xbox 360 or PS3 – Destructoid
Portal 2: PS3 vs. Xbox 360 vs. PC Screenshot Comparison | N4G
Portal 2 PS3 Edition To Have Cross-Platform Play, Other Steam Features | TechCrunch
Portal 2: Visual Comparison Between PC, Xbox 360 and PS3 : r/gaming
Portal 2' now available for PC, Xbox 360, PS3 | Digital Trends
Portal 2 PS3 Features Revealed
E3 10 Preview: Portal 2 And Surprise Its Coming To PS3 - MonsterVine
Just posting again from mildly interesting because someone said it would fit here anyway I just realised my ps3 copy of portal 2 lets you play on steam for free. : r/Portal
Amazon.com: Portal 2 - Playstation 3 : Video Games
Portal 2 Comparison - Xbox 360 vs. Xbox One X - YouTube
Portal 2 - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game
Technik-Check: Portal 2 - Grafikvergleich: PC vs. Xbox 360 vs. PS3
Portal 2 | PS3 vs XBOX 360 vs PC (Which One is Better!) - YouTube
Portal 2 on PS3 features cross-platform chat, multiplayer and a free Steam copy | Engadget
Portal 2 | PS3 vs XBOX 360 vs PC (Which One is Better!) - YouTube
Portal 2 | PS3 vs XBOX 360 vs PC (Which One is Better!) - YouTube
Valve talks Portal 2 on PlayStation 3, Steam on 360 | Ars Technica
Portal 2 to enable PS3 vs PC play - VideoGamer.com